MEP-4021 | Damper Actuator | 40 in-lb | Non-Spring Return | 24V | Floating | End Switch | KMC Controls

KMC Controls MEP-4021: Precise Control for Industrial Applications The MEP-4021 by KMC Controls offers precise and reliable control for a wide range of industrial systems. Specifically designed for tri-state applications, it features a voltage range of 24V and a low-power consumption of 40mA. The MEP-4021 provides exceptional durability in harsh environments, ensuring uninterrupted operation. This controller supports Auxiliary (AUX) functionality, allowing for expanded control capabilities. Its compact design allows for easy integration into existing systems, providing a flexible solution for engineers and maintenance professionals. The MEP-4021 is an ideal choice for demanding applications requiring precision control and dependable performance. Shop our HVAC supply store today for the most competitive prices and expedited shipping on the MEP-4021 and other industrial control solutions. We're committed to providing the highest quality products and exceptional customer service. Enhance your industrial processes with the MEP-4021 from KMC Controls, available exclusively at our HVAC supply store!

These compact but powerful direct-coupled actuators provide tri-state or proportional control for small dampers or valves in HVAC systems. A minimum torque of 40 (MEP-40xx) or 80 (MEP-48xx) inch-pounds is available over the 95° angular rotation.

The MEP-4002/4022/4802/4822 proportional actuator models accept a 0-10 or 2-10 volts DC control signal input from a thermostat, controller, or building automation system. “Anti-jitter” circuitry significantly reduces hunting and needless wear on the actuator and valve packing or damper components (from unnecessary miniscule position changes caused by undamped analog input signals). A user-initiated, auto-mapping feature provides better equipment control by reassigning the 0-10 or 2-10 volts DC input signal range over a reduced rotation range (from 45° to 95°). These models also feature a switch-selectable, 1–5 or 2–10 (or 0–5 or 0–10) VDC voltage feedback output that is proportional to the actuator position.

The MEP-4001/4003/4013/4021/4801/4813/4821 tri-state/two-position models are designed for use with floating thermostats, controllers, or building automation systems. The MEP-4013/4813 models feature a 10,000 ohm (+/- 10%), three-wire potentiometer feedback output. (The tri-state MEP-4003/4003V do not have two-position functionality or the larger green top enclosure.)

The MEP-4×21/4×22 models also have a fully adjustable, built-in SPDT auxiliary switch, for remote position indication or controller and equipment interface.

MEP-4001V/4002V/4003V actuators have brackets with a patented, quick-mounting mechanism that mounts directly on VFB-43…BC and VFB-46…BC series valve bodies (or VFB-43…BX and VFB-46…BX series with HPO-5074 kit). (See the “V” Models Valve Cross-Reference section in the data sheet for more information.)

All other MEP-4000s mount directly to 1/4- to 5/8-inch (6 to 16 mm) round shafts or 1/4- to 7/16-inch (6 to 11 mm) square shafts, eliminating the need for expensive and complicated linkages. A non-rotation bracket, to prevent lateral movement, is included with each actuator. A gear disengagement feature allows manual positioning of the actuator.

For fail-safe versions of these actuators, see the MEP-4200/4500/4900 series. See also the modular MEP-4042/4842 and the fast-operating 10 in-lb. MEP-4101.